Lithium Air Secondary Battery

Abstract

A lithium air secondary battery is allowed to operate as a high-capacity secondary battery, thereby implementing high output and a large discharge capacity. A lithium air secondary battery 100 includes an air electrode 102 using oxygen in the air as a positive electrode active material, a negative electrode 104 using metallic lithium or a lithium-containing material as a negative electrode active material, and an organic electrolyte 106 placed between the air electrode 102 and the negative electrode 104, and including a lithium salt. The organic electrolyte 106 includes a crown ether compound having an azo group as an additive.

1 . A lithium air secondary battery, comprising: a positive electrode using oxygen as a positive electrode active material; a negative electrode using metallic lithium or a lithium-containing material as a negative electrode active material; and an organic electrolyte placed between the positive electrode and the negative electrode, and including a lithium salt, wherein the organic electrolyte includes a crown ether compound having an azo group. 
     
     
         2 . The lithium air secondary battery according to  claim 1 , wherein the crown ether compound is any of 1-aza-15-crown-5-ether, 1-aza-18-crown-6-ether, 4,13-diaza-18-crown-6-ether, N,N′-dibenzyl-4,13-diaza-18-crown-6-ether, and N-phenyl aza-15-crown-5-ether.